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Old Nov 02, 2013, 03:06 PM
MrE
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United States, WA, Gig Harbor
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Looked like he had enough wind to do a harrier landing - no slide
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Old Nov 04, 2013, 12:04 PM
Giorgos Stratakis
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Athens Greece
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Nice one, amigo.

Thanks for sharing.






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Old Nov 05, 2013, 05:58 AM
Fly to live- Live to fly
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Tx a lot buddies.... Actually the area close to the graved runway, as said, last night and days before was heavy rain... and it was complety unusable by the mud..., and if you land on this area, problably to you will have your shoes complety full of dirt.....
Anyway, as fellow said there were enough wind...; ( more than I preffer, to do a exactly vertical landing without any slippering and mar the bottom covering of fuse...). As my own runway is exactly of the same ground material, on all my thermal ships I use landing skids.....even a triangle tips on the polyhedral joints on some ..., not neccesary in the Mirage cause the electrical red tape that is used to secure the outer pannels is placed also in the bottom and protect the covering too...
Regards buddies, and Tx a lot again for your gentle words and inestimable help on this wonderful project...
Manolo.
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Old Nov 05, 2013, 11:28 AM
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Surprise, AZ
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Manolo, What is the material you are using for the skid????
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Old Nov 09, 2013, 01:15 PM
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Sorry not posting before buddy. The landing skid actually t is 1 cm. wide foam...you cand find in the sports stores, at least here. I just cut the strips with a sharp blade and fix with two face sticking tape... From time to time I remove the skids and just install a new one. It offer good abrasive protection plus it stop the ship without too much slippery...
Not a Mirage, but just check on our very abrasive club runway almost at the end of this the vid to check how it works compared with another glider without... on 6´10 min. and 7´02 min.
Regards.
Manolo.

BIRD OF TIME, BIRDIE AND FRIENDS... (8 min 42 sec)
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Old Nov 09, 2013, 05:36 PM
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Surprise, AZ
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Manolo,
Thanks for the update. I'll check sporting goods stores. We land on
asphalt runway or desert floor so the bottom takes a beating.
John
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Old Nov 09, 2013, 05:52 PM
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Quote:
Originally Posted by ultimatetwo View Post
Sorry not posting before buddy. The landing skid actually t is 1 cm. wide foam...you cand find in the sports stores, at least here. I just cut the strips with a sharp blade and fix with two face sticking tape... From time to time I remove the skids and just install a new one. It offer good abrasive protection plus it stop the ship without too much slippery...
Not a Mirage, but just check on our very abrasive club runway almost at the end of this the vid to check how it works compared with another glider without... on 6´10 min. and 7´02 min.
Regards.
Manolo.


Wow. Why in the world are you guys landing downwind? Why can't you make your approach from the opposite direction?

Again, I'd be landing in the dirt field. Muddy or not. It's got to be better on your planes than the asphalt.
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Old Nov 10, 2013, 11:26 AM
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Quote:
Originally Posted by DrewV View Post
Wow. Why in the world are you guys landing downwind? Why can't you make your approach from the opposite direction?

Again, I'd be landing in the dirt field. Muddy or not. It's got to be better on your planes than the asphalt.
Hi Drew..., check again the video and see the flags.... it wasn´t downwind. Actually it was fully right cross wind...
If you check my aproach.. what I did was drifting from the left with rudder; ( of course, no alierons on most BOTs ), till i reach the center of the runway...
The others guys did more or less the same but maybe with too much speed and without using spoilers or spoilerons on them...
Many times that cross wind and abrasive fields are a good excuse to hand catch..., at lest till the wheat fields around my runway will be tall enough...
Regards mate.
Manolo.
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Old Mar 13, 2014, 06:56 PM
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United States, CA, Davis
Joined Nov 2007
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E- mirage- incidence question

I am building a Mirage. built two fuses- one for winch launch and the other for adding an electric motor for ALES.
I noticed on the plans that the wing has a 2 degree positive incidence to the horizontal stab. Is that correct. My kit is an old one- Hi-Flight Model Products, manufactured in Hemet, CA. The plans are the old blue line prints. When plans are printed a lot this way the get off a little from the original drawings. I have adapted some of the build tips from Marks Isthmus kit like the wing hold down and shear web upgrade.
My main concern is the incidence. I usually like a 0 incidence on a plane to avoid pitch on launch.
I would appreciate any thoughts on this.
I am tying to get this plane ready for an ALES contest in 10 days so haven't had time to read all the posts on this thread.
Thanks for any input.
Lou
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Last edited by foxcraft; Mar 13, 2014 at 06:58 PM. Reason: spelling and word checks
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Old Mar 14, 2014, 08:03 AM
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On mine is two degrees down and the same to left. As almost always in this kind of e-conversions, not enough at all at full power and I must use some elevator down mixing or fingering..., but fine for a gentle climb....
Regards.
Manolo.
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Old Mar 14, 2014, 06:48 PM
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San Diego area
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Quote:
Originally Posted by foxcraft View Post
I am building a Mirage. built two fuses- one for winch launch and the other for adding an electric motor for ALES.
I noticed on the plans that the wing has a 2 degree positive incidence to the horizontal stab. Is that correct. My kit is an old one- Hi-Flight Model Products, manufactured in Hemet, CA. The plans are the old blue line prints. When plans are printed a lot this way the get off a little from the original drawings. I have adapted some of the build tips from Marks Isthmus kit like the wing hold down and shear web upgrade.
My main concern is the incidence. I usually like a 0 incidence on a plane to avoid pitch on launch.
I would appreciate any thoughts on this.
I am tying to get this plane ready for an ALES contest in 10 days so haven't had time to read all the posts on this thread.
Thanks for any input.
Lou
Foxcraft:

From my Isthmus Models Mirage fuse drawing, it looks like the wing has a 2 degree positive incidence to the stab, as measured with my protractor.

Craig
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Old Mar 14, 2014, 06:55 PM
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United States, CA, Davis
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mirage- incidence question

Thanks for checking your plans for the incidence.
Since I am using a nylon bolt hold down on the trailing edge of the wing it would be easy to shim the trailing wing edge to change incidence.
Lou
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Old Mar 14, 2014, 10:40 PM
MrE
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The original kit had the 2 deg positive incidence. That will work fine as long as you keep to the original CG position and dont mind a limited speed range.

I would recommend you change it to zero incidence.

That will allow you to move the cg back. Mine flew much better with the cg moved waaaay back from what is shown on the plans. I was flying mine at just over 50% back from the leading edge at the center panel.
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Old Mar 17, 2014, 03:22 PM
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San Diego area
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Quote:
Originally Posted by MrE View Post
The original kit had the 2 deg positive incidence. That will work fine as long as you keep to the original CG position and dont mind a limited speed range.

I would recommend you change it to zero incidence.

That will allow you to move the cg back. Mine flew much better with the cg moved waaaay back from what is shown on the plans. I was flying mine at just over 50% back from the leading edge at the center panel.
Mr E:

Thanks for the incidence recommendation. I already had the CG back a bit. But I am starting to shim the trailing edge of the wing and I like the results.
I think I will continue to approach zero incidence with more shimming. I plan to move the CG back further, but will have to go to a smaller LiPo. This is a good thing because a 2200mAh 3s LiPo definitely is not required for my Mirage.

Funny (scary) thing happened today. Lesson learned: pre-flight your Tx, not just your plane. I have an on-off toggle switch for the throttle. Today while flying, I noticed that the toggle kept getting shorter until it was almost not there. Luckily this fool had a piece of tape on end of toggle to remind him it is the throttle. Otherwise the switch probably would have gone into the body of the Tx and resulted in a non-stop,full throttle, flight from Hell.

A great Boomer day for my favorite bird.

Craig
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Old Mar 18, 2014, 12:44 AM
MrE
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United States, WA, Gig Harbor
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Close call on the tx switch! Glad you caught it in time

I did the same shimming on the wing trailing edge until I was at zero. I had moved the cg back first and ended up with a large elevator deflection in relation to the horizontal stab. That doesnt hurt performance all that much, but it sure looks weird!

It was easier to shim the wing than to change the stab angle.
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